Effect of electrolyte cation-mediated mechanism on electrocatalytic carbon dioxide reduction

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外文摘要：The steep reduction in costs and systematic optimization of renewable electricity has ignited an intensi-fying interest in harnessing electroreduction of carbon dioxide(CO2RR)for the generation of chemicals and fuels.The focus of research over the past few decades has been on the optimization of the electrode and the electrolyte environment.Notably,cation species in the latter have recently been found to dramat-ically alter the selectivity of CO2RR and even their catalytic activity by multiple orders of magnitude.As a result,the selection of cations is a critical factor in designing catalytic interfaces with high selectivity and efficiency for targeted products.Informed decision-making regarding cation selection relies on a compre-hensive understanding of prevailing electrolyte effect models that have been used to elucidate observed experimental trends.In this perspective,we review the hypotheses that explain how electrolyte cations influence CO2RR by mechanisms such as through tuning of the interfacial electric field,buffering of the local pH,stabilization of the key intermediates and regulation of the interfacial water.Our endeavor is to elucidate the molecular mechanisms underpinning cation effects,thus fostering the evolution of more holistic and universally applicable predictive models.In this regard,we highlight the current challenges in this area of research,while also identifying potential avenues for future investigations.

外文关键词：

CO2 electrocatalytic reductionCation effectsCatalytic mechanismsCatalytic interfacesElectric double layer

作者：

Yuan Dong、Mutian Ma、Zhenyang Jiao、Sheng Han、Likun Xiong、Zhao Deng、Yang Peng

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作者单位：

Soochow Institute of Energy and Material Innovations,College of Energy,Jiangsu Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies,Soochow University,Soochow 215006,China

Jiangsu Key Laboratory of Advanced Negative Carbon Technologies,Soochow University,Soochow 215123,China

School of Chemistry and Chemical Engineering,Shihezi University,Shihezi 832003,China

School of Chemical and Environmental Engineering,Shanghai Institute of Technology,Shanghai 201418,China

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基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China"Chen Guang"Project supported by Shanghai Municipal Education Commission and Shanghai Education Development FoundationNatural science Foundation of Jiangsu ProvincePriority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions

项目编号：

221090992207210121CGA66BK20211306

出版年：

2024

DOI：

10.1016/j.cclet.2023.109049

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCD

影响因子：0.771

ISSN：1001-8417

年,卷(期)：2024.35(7)